Ryzen lockup on bhyve was (Re: new Ryzen lockup issue ?)

Peter Grehan grehan at freebsd.org
Thu Mar 1 17:02:10 UTC 2018


>> 	On the Epyc it seemed to take a longer, but eventually the box locked
>> up and the watchdog ended up rebooting the server. I started 3, vCPU
>> guests all with separate CPU's pinned. It lasted 9hrs.
> 
> The Ryzen board also locked up with just 2 VMs running, and all vCPUs
> pinned to separate cores.

  Thanks for that Mike - it rules out any issues related to vCPUs moving 
around on physical cores.

  I'd like to now see if there's a way to get this to happen quicker - 
perhaps running the test with increasing numbers of guest vCPUs ? From 
what I've seen, the network test only really uses 2 vCPUs so it's 
probably ok to even go to oversubscribing.

  I'll get this going on my Ryzen.

later,

Peter.


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